In information retrieval, vector space model is one of significant mathematics tools.
在信息检索中，向量空间模型是最有效的数学工具之一。
2
Based on the analysis of the deficiency of the traditional vector space retrieval model, the file structure based vector space retrieval model is presented.
分析了传统向量空间检索模型在网络信息检索中的不足，给出了基于文档结构的向量空间检索模型。
3
Relevance feedback algorithm based on support vector machine and rough set for image retrieval is approached.